0,0 → 1,1417 |
/* |
* Mesa 3-D graphics library |
* Version: 7.5 |
* |
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
* Copyright (C) 2009 VMware, Inc. All Rights Reserved. |
* |
* Permission is hereby granted, free of charge, to any person obtaining a |
* copy of this software and associated documentation files (the "Software"), |
* to deal in the Software without restriction, including without limitation |
* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
* and/or sell copies of the Software, and to permit persons to whom the |
* Software is furnished to do so, subject to the following conditions: |
* |
* The above copyright notice and this permission notice shall be included |
* in all copies or substantial portions of the Software. |
* |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
*/ |
|
/** |
* \file texparam.c |
* |
* glTexParameter-related functions |
*/ |
|
|
#include "main/glheader.h" |
#include "main/colormac.h" |
#include "main/context.h" |
#include "main/formats.h" |
#include "main/macros.h" |
#include "main/texcompress.h" |
#include "main/texparam.h" |
#include "main/teximage.h" |
#include "main/texstate.h" |
#include "program/prog_instruction.h" |
|
|
/** |
* Check if a coordinate wrap mode is supported for the texture target. |
* \return GL_TRUE if legal, GL_FALSE otherwise |
*/ |
static GLboolean |
validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap) |
{ |
const struct gl_extensions * const e = & ctx->Extensions; |
|
if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE || |
(wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) { |
/* any texture target */ |
return GL_TRUE; |
} |
else if (target != GL_TEXTURE_RECTANGLE_NV && |
(wrap == GL_REPEAT || |
(wrap == GL_MIRRORED_REPEAT && |
e->ARB_texture_mirrored_repeat) || |
(wrap == GL_MIRROR_CLAMP_EXT && |
(e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || |
(wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT && |
(e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || |
(wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT && |
(e->EXT_texture_mirror_clamp)))) { |
/* non-rectangle texture */ |
return GL_TRUE; |
} |
|
_mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap ); |
return GL_FALSE; |
} |
|
|
/** |
* Get current texture object for given target. |
* Return NULL if any error (and record the error). |
* Note that this is different from _mesa_select_tex_object() in that proxy |
* targets are not accepted. |
* Only the glGetTexLevelParameter() functions accept proxy targets. |
*/ |
static struct gl_texture_object * |
get_texobj(struct gl_context *ctx, GLenum target, GLboolean get) |
{ |
struct gl_texture_unit *texUnit; |
|
if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"gl%sTexParameter(current unit)", get ? "Get" : ""); |
return NULL; |
} |
|
texUnit = _mesa_get_current_tex_unit(ctx); |
|
switch (target) { |
case GL_TEXTURE_1D: |
return texUnit->CurrentTex[TEXTURE_1D_INDEX]; |
case GL_TEXTURE_2D: |
return texUnit->CurrentTex[TEXTURE_2D_INDEX]; |
case GL_TEXTURE_3D: |
return texUnit->CurrentTex[TEXTURE_3D_INDEX]; |
case GL_TEXTURE_CUBE_MAP: |
if (ctx->Extensions.ARB_texture_cube_map) { |
return texUnit->CurrentTex[TEXTURE_CUBE_INDEX]; |
} |
break; |
case GL_TEXTURE_RECTANGLE_NV: |
if (ctx->Extensions.NV_texture_rectangle) { |
return texUnit->CurrentTex[TEXTURE_RECT_INDEX]; |
} |
break; |
case GL_TEXTURE_1D_ARRAY_EXT: |
if (ctx->Extensions.MESA_texture_array) { |
return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX]; |
} |
break; |
case GL_TEXTURE_2D_ARRAY_EXT: |
if (ctx->Extensions.MESA_texture_array) { |
return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX]; |
} |
break; |
default: |
; |
} |
|
_mesa_error(ctx, GL_INVALID_ENUM, |
"gl%sTexParameter(target)", get ? "Get" : ""); |
return NULL; |
} |
|
|
/** |
* Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE. |
* \return -1 if error. |
*/ |
static GLint |
comp_to_swizzle(GLenum comp) |
{ |
switch (comp) { |
case GL_RED: |
return SWIZZLE_X; |
case GL_GREEN: |
return SWIZZLE_Y; |
case GL_BLUE: |
return SWIZZLE_Z; |
case GL_ALPHA: |
return SWIZZLE_W; |
case GL_ZERO: |
return SWIZZLE_ZERO; |
case GL_ONE: |
return SWIZZLE_ONE; |
default: |
return -1; |
} |
} |
|
|
static void |
set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz) |
{ |
ASSERT(comp < 4); |
ASSERT(swz <= SWIZZLE_NIL); |
{ |
GLuint mask = 0x7 << (3 * comp); |
GLuint s = (*swizzle & ~mask) | (swz << (3 * comp)); |
*swizzle = s; |
} |
} |
|
|
/** |
* This is called just prior to changing any texture object state. |
* Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE |
* state flag and then mark the texture object as 'incomplete' so that any |
* per-texture derived state gets recomputed. |
*/ |
static INLINE void |
flush(struct gl_context *ctx, struct gl_texture_object *texObj) |
{ |
FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
texObj->_Complete = GL_FALSE; |
} |
|
|
/** |
* Set an integer-valued texture parameter |
* \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise |
*/ |
static GLboolean |
set_tex_parameteri(struct gl_context *ctx, |
struct gl_texture_object *texObj, |
GLenum pname, const GLint *params) |
{ |
switch (pname) { |
case GL_TEXTURE_MIN_FILTER: |
if (texObj->MinFilter == params[0]) |
return GL_FALSE; |
switch (params[0]) { |
case GL_NEAREST: |
case GL_LINEAR: |
flush(ctx, texObj); |
texObj->MinFilter = params[0]; |
return GL_TRUE; |
case GL_NEAREST_MIPMAP_NEAREST: |
case GL_LINEAR_MIPMAP_NEAREST: |
case GL_NEAREST_MIPMAP_LINEAR: |
case GL_LINEAR_MIPMAP_LINEAR: |
if (texObj->Target != GL_TEXTURE_RECTANGLE_NV) { |
flush(ctx, texObj); |
texObj->MinFilter = params[0]; |
return GL_TRUE; |
} |
/* fall-through */ |
default: |
_mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", |
params[0] ); |
} |
return GL_FALSE; |
|
case GL_TEXTURE_MAG_FILTER: |
if (texObj->MagFilter == params[0]) |
return GL_FALSE; |
switch (params[0]) { |
case GL_NEAREST: |
case GL_LINEAR: |
flush(ctx, texObj); |
texObj->MagFilter = params[0]; |
return GL_TRUE; |
default: |
_mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", |
params[0]); |
} |
return GL_FALSE; |
|
case GL_TEXTURE_WRAP_S: |
if (texObj->WrapS == params[0]) |
return GL_FALSE; |
if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { |
flush(ctx, texObj); |
texObj->WrapS = params[0]; |
return GL_TRUE; |
} |
return GL_FALSE; |
|
case GL_TEXTURE_WRAP_T: |
if (texObj->WrapT == params[0]) |
return GL_FALSE; |
if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { |
flush(ctx, texObj); |
texObj->WrapT = params[0]; |
return GL_TRUE; |
} |
return GL_FALSE; |
|
case GL_TEXTURE_WRAP_R: |
if (texObj->WrapR == params[0]) |
return GL_FALSE; |
if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { |
flush(ctx, texObj); |
texObj->WrapR = params[0]; |
return GL_TRUE; |
} |
return GL_FALSE; |
|
case GL_TEXTURE_BASE_LEVEL: |
if (texObj->BaseLevel == params[0]) |
return GL_FALSE; |
if (params[0] < 0 || |
(texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) { |
_mesa_error(ctx, GL_INVALID_VALUE, |
"glTexParameter(param=%d)", params[0]); |
return GL_FALSE; |
} |
flush(ctx, texObj); |
texObj->BaseLevel = params[0]; |
return GL_TRUE; |
|
case GL_TEXTURE_MAX_LEVEL: |
if (texObj->MaxLevel == params[0]) |
return GL_FALSE; |
if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) { |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"glTexParameter(param=%d)", params[0]); |
return GL_FALSE; |
} |
flush(ctx, texObj); |
texObj->MaxLevel = params[0]; |
return GL_TRUE; |
|
case GL_GENERATE_MIPMAP_SGIS: |
if (texObj->GenerateMipmap != params[0]) { |
flush(ctx, texObj); |
texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE; |
return GL_TRUE; |
} |
return GL_FALSE; |
|
case GL_TEXTURE_COMPARE_MODE_ARB: |
if (ctx->Extensions.ARB_shadow && |
(params[0] == GL_NONE || |
params[0] == GL_COMPARE_R_TO_TEXTURE_ARB)) { |
if (texObj->CompareMode != params[0]) { |
flush(ctx, texObj); |
texObj->CompareMode = params[0]; |
return GL_TRUE; |
} |
return GL_FALSE; |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glTexParameter(GL_TEXTURE_COMPARE_MODE_ARB)"); |
} |
return GL_FALSE; |
|
case GL_TEXTURE_COMPARE_FUNC_ARB: |
if (ctx->Extensions.ARB_shadow) { |
if (texObj->CompareFunc == params[0]) |
return GL_FALSE; |
switch (params[0]) { |
case GL_LEQUAL: |
case GL_GEQUAL: |
flush(ctx, texObj); |
texObj->CompareFunc = params[0]; |
return GL_TRUE; |
case GL_EQUAL: |
case GL_NOTEQUAL: |
case GL_LESS: |
case GL_GREATER: |
case GL_ALWAYS: |
case GL_NEVER: |
if (ctx->Extensions.EXT_shadow_funcs) { |
flush(ctx, texObj); |
texObj->CompareFunc = params[0]; |
return GL_TRUE; |
} |
/* fall-through */ |
default: |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glTexParameter(GL_TEXTURE_COMPARE_FUNC_ARB)"); |
} |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); |
} |
return GL_FALSE; |
|
case GL_DEPTH_TEXTURE_MODE_ARB: |
if (ctx->Extensions.ARB_depth_texture && |
(params[0] == GL_LUMINANCE || |
params[0] == GL_INTENSITY || |
params[0] == GL_ALPHA || |
(ctx->Extensions.ARB_texture_rg && params[0] == GL_RED))) { |
if (texObj->DepthMode != params[0]) { |
flush(ctx, texObj); |
texObj->DepthMode = params[0]; |
return GL_TRUE; |
} |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glTexParameter(GL_DEPTH_TEXTURE_MODE_ARB)"); |
} |
return GL_FALSE; |
|
#if FEATURE_OES_draw_texture |
case GL_TEXTURE_CROP_RECT_OES: |
texObj->CropRect[0] = params[0]; |
texObj->CropRect[1] = params[1]; |
texObj->CropRect[2] = params[2]; |
texObj->CropRect[3] = params[3]; |
return GL_TRUE; |
#endif |
|
case GL_TEXTURE_SWIZZLE_R_EXT: |
case GL_TEXTURE_SWIZZLE_G_EXT: |
case GL_TEXTURE_SWIZZLE_B_EXT: |
case GL_TEXTURE_SWIZZLE_A_EXT: |
if (ctx->Extensions.EXT_texture_swizzle) { |
const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; |
const GLint swz = comp_to_swizzle(params[0]); |
if (swz < 0) { |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"glTexParameter(swizzle 0x%x)", params[0]); |
return GL_FALSE; |
} |
ASSERT(comp < 4); |
if (swz >= 0) { |
flush(ctx, texObj); |
texObj->Swizzle[comp] = params[0]; |
set_swizzle_component(&texObj->_Swizzle, comp, swz); |
return GL_TRUE; |
} |
} |
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); |
return GL_FALSE; |
|
case GL_TEXTURE_SWIZZLE_RGBA_EXT: |
if (ctx->Extensions.EXT_texture_swizzle) { |
GLuint comp; |
flush(ctx, texObj); |
for (comp = 0; comp < 4; comp++) { |
const GLint swz = comp_to_swizzle(params[comp]); |
if (swz >= 0) { |
texObj->Swizzle[comp] = params[comp]; |
set_swizzle_component(&texObj->_Swizzle, comp, swz); |
} |
else { |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"glTexParameter(swizzle 0x%x)", params[comp]); |
return GL_FALSE; |
} |
} |
return GL_TRUE; |
} |
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); |
return GL_FALSE; |
|
default: |
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); |
} |
return GL_FALSE; |
} |
|
|
/** |
* Set a float-valued texture parameter |
* \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise |
*/ |
static GLboolean |
set_tex_parameterf(struct gl_context *ctx, |
struct gl_texture_object *texObj, |
GLenum pname, const GLfloat *params) |
{ |
switch (pname) { |
case GL_TEXTURE_MIN_LOD: |
if (texObj->MinLod == params[0]) |
return GL_FALSE; |
flush(ctx, texObj); |
texObj->MinLod = params[0]; |
return GL_TRUE; |
|
case GL_TEXTURE_MAX_LOD: |
if (texObj->MaxLod == params[0]) |
return GL_FALSE; |
flush(ctx, texObj); |
texObj->MaxLod = params[0]; |
return GL_TRUE; |
|
case GL_TEXTURE_PRIORITY: |
flush(ctx, texObj); |
texObj->Priority = CLAMP(params[0], 0.0F, 1.0F); |
return GL_TRUE; |
|
case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
if (ctx->Extensions.EXT_texture_filter_anisotropic) { |
if (texObj->MaxAnisotropy == params[0]) |
return GL_FALSE; |
if (params[0] < 1.0) { |
_mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
return GL_FALSE; |
} |
flush(ctx, texObj); |
/* clamp to max, that's what NVIDIA does */ |
texObj->MaxAnisotropy = MIN2(params[0], |
ctx->Const.MaxTextureMaxAnisotropy); |
return GL_TRUE; |
} |
else { |
static GLuint count = 0; |
if (count++ < 10) |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)"); |
} |
return GL_FALSE; |
|
case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
if (ctx->Extensions.ARB_shadow_ambient) { |
if (texObj->CompareFailValue != params[0]) { |
flush(ctx, texObj); |
texObj->CompareFailValue = CLAMP(params[0], 0.0F, 1.0F); |
return GL_TRUE; |
} |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)"); |
} |
return GL_FALSE; |
|
case GL_TEXTURE_LOD_BIAS: |
/* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */ |
if (ctx->Extensions.EXT_texture_lod_bias) { |
if (texObj->LodBias != params[0]) { |
flush(ctx, texObj); |
texObj->LodBias = params[0]; |
return GL_TRUE; |
} |
return GL_FALSE; |
} |
break; |
|
case GL_TEXTURE_BORDER_COLOR: |
flush(ctx, texObj); |
texObj->BorderColor.f[RCOMP] = params[0]; |
texObj->BorderColor.f[GCOMP] = params[1]; |
texObj->BorderColor.f[BCOMP] = params[2]; |
texObj->BorderColor.f[ACOMP] = params[3]; |
return GL_TRUE; |
|
default: |
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); |
} |
return GL_FALSE; |
} |
|
|
void GLAPIENTRY |
_mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param) |
{ |
GLboolean need_update; |
struct gl_texture_object *texObj; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
texObj = get_texobj(ctx, target, GL_FALSE); |
if (!texObj) |
return; |
|
switch (pname) { |
case GL_TEXTURE_MIN_FILTER: |
case GL_TEXTURE_MAG_FILTER: |
case GL_TEXTURE_WRAP_S: |
case GL_TEXTURE_WRAP_T: |
case GL_TEXTURE_WRAP_R: |
case GL_TEXTURE_BASE_LEVEL: |
case GL_TEXTURE_MAX_LEVEL: |
case GL_GENERATE_MIPMAP_SGIS: |
case GL_TEXTURE_COMPARE_MODE_ARB: |
case GL_TEXTURE_COMPARE_FUNC_ARB: |
case GL_DEPTH_TEXTURE_MODE_ARB: |
{ |
/* convert float param to int */ |
GLint p[4]; |
p[0] = (GLint) param; |
p[1] = p[2] = p[3] = 0; |
need_update = set_tex_parameteri(ctx, texObj, pname, p); |
} |
break; |
default: |
{ |
/* this will generate an error if pname is illegal */ |
GLfloat p[4]; |
p[0] = param; |
p[1] = p[2] = p[3] = 0.0F; |
need_update = set_tex_parameterf(ctx, texObj, pname, p); |
} |
} |
|
if (ctx->Driver.TexParameter && need_update) { |
ctx->Driver.TexParameter(ctx, target, texObj, pname, ¶m); |
} |
} |
|
|
void GLAPIENTRY |
_mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params) |
{ |
GLboolean need_update; |
struct gl_texture_object *texObj; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
texObj = get_texobj(ctx, target, GL_FALSE); |
if (!texObj) |
return; |
|
switch (pname) { |
case GL_TEXTURE_MIN_FILTER: |
case GL_TEXTURE_MAG_FILTER: |
case GL_TEXTURE_WRAP_S: |
case GL_TEXTURE_WRAP_T: |
case GL_TEXTURE_WRAP_R: |
case GL_TEXTURE_BASE_LEVEL: |
case GL_TEXTURE_MAX_LEVEL: |
case GL_GENERATE_MIPMAP_SGIS: |
case GL_TEXTURE_COMPARE_MODE_ARB: |
case GL_TEXTURE_COMPARE_FUNC_ARB: |
case GL_DEPTH_TEXTURE_MODE_ARB: |
{ |
/* convert float param to int */ |
GLint p[4]; |
p[0] = (GLint) params[0]; |
p[1] = p[2] = p[3] = 0; |
need_update = set_tex_parameteri(ctx, texObj, pname, p); |
} |
break; |
|
#if FEATURE_OES_draw_texture |
case GL_TEXTURE_CROP_RECT_OES: |
{ |
/* convert float params to int */ |
GLint iparams[4]; |
iparams[0] = (GLint) params[0]; |
iparams[1] = (GLint) params[1]; |
iparams[2] = (GLint) params[2]; |
iparams[3] = (GLint) params[3]; |
need_update = set_tex_parameteri(ctx, texObj, pname, iparams); |
} |
break; |
#endif |
|
default: |
/* this will generate an error if pname is illegal */ |
need_update = set_tex_parameterf(ctx, texObj, pname, params); |
} |
|
if (ctx->Driver.TexParameter && need_update) { |
ctx->Driver.TexParameter(ctx, target, texObj, pname, params); |
} |
} |
|
|
void GLAPIENTRY |
_mesa_TexParameteri(GLenum target, GLenum pname, GLint param) |
{ |
GLboolean need_update; |
struct gl_texture_object *texObj; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
texObj = get_texobj(ctx, target, GL_FALSE); |
if (!texObj) |
return; |
|
switch (pname) { |
case GL_TEXTURE_MIN_LOD: |
case GL_TEXTURE_MAX_LOD: |
case GL_TEXTURE_PRIORITY: |
case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
case GL_TEXTURE_LOD_BIAS: |
case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
{ |
GLfloat fparam[4]; |
fparam[0] = (GLfloat) param; |
fparam[1] = fparam[2] = fparam[3] = 0.0F; |
/* convert int param to float */ |
need_update = set_tex_parameterf(ctx, texObj, pname, fparam); |
} |
break; |
default: |
/* this will generate an error if pname is illegal */ |
{ |
GLint iparam[4]; |
iparam[0] = param; |
iparam[1] = iparam[2] = iparam[3] = 0; |
need_update = set_tex_parameteri(ctx, texObj, pname, iparam); |
} |
} |
|
if (ctx->Driver.TexParameter && need_update) { |
GLfloat fparam = (GLfloat) param; |
ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam); |
} |
} |
|
|
void GLAPIENTRY |
_mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params) |
{ |
GLboolean need_update; |
struct gl_texture_object *texObj; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
texObj = get_texobj(ctx, target, GL_FALSE); |
if (!texObj) |
return; |
|
switch (pname) { |
case GL_TEXTURE_BORDER_COLOR: |
{ |
/* convert int params to float */ |
GLfloat fparams[4]; |
fparams[0] = INT_TO_FLOAT(params[0]); |
fparams[1] = INT_TO_FLOAT(params[1]); |
fparams[2] = INT_TO_FLOAT(params[2]); |
fparams[3] = INT_TO_FLOAT(params[3]); |
need_update = set_tex_parameterf(ctx, texObj, pname, fparams); |
} |
break; |
case GL_TEXTURE_MIN_LOD: |
case GL_TEXTURE_MAX_LOD: |
case GL_TEXTURE_PRIORITY: |
case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
case GL_TEXTURE_LOD_BIAS: |
case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
{ |
/* convert int param to float */ |
GLfloat fparams[4]; |
fparams[0] = (GLfloat) params[0]; |
fparams[1] = fparams[2] = fparams[3] = 0.0F; |
need_update = set_tex_parameterf(ctx, texObj, pname, fparams); |
} |
break; |
default: |
/* this will generate an error if pname is illegal */ |
need_update = set_tex_parameteri(ctx, texObj, pname, params); |
} |
|
if (ctx->Driver.TexParameter && need_update) { |
GLfloat fparams[4]; |
fparams[0] = INT_TO_FLOAT(params[0]); |
if (pname == GL_TEXTURE_BORDER_COLOR || |
pname == GL_TEXTURE_CROP_RECT_OES) { |
fparams[1] = INT_TO_FLOAT(params[1]); |
fparams[2] = INT_TO_FLOAT(params[2]); |
fparams[3] = INT_TO_FLOAT(params[3]); |
} |
ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams); |
} |
} |
|
|
/** |
* Set tex parameter to integer value(s). Primarily intended to set |
* integer-valued texture border color (for integer-valued textures). |
* New in GL 3.0. |
*/ |
void GLAPIENTRY |
_mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params) |
{ |
struct gl_texture_object *texObj; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
texObj = get_texobj(ctx, target, GL_FALSE); |
if (!texObj) |
return; |
|
switch (pname) { |
case GL_TEXTURE_BORDER_COLOR: |
FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
/* set the integer-valued border color */ |
COPY_4V(texObj->BorderColor.i, params); |
break; |
default: |
_mesa_TexParameteriv(target, pname, params); |
break; |
} |
/* XXX no driver hook for TexParameterIiv() yet */ |
} |
|
|
/** |
* Set tex parameter to unsigned integer value(s). Primarily intended to set |
* uint-valued texture border color (for integer-valued textures). |
* New in GL 3.0 |
*/ |
void GLAPIENTRY |
_mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params) |
{ |
struct gl_texture_object *texObj; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
texObj = get_texobj(ctx, target, GL_FALSE); |
if (!texObj) |
return; |
|
switch (pname) { |
case GL_TEXTURE_BORDER_COLOR: |
FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
/* set the unsigned integer-valued border color */ |
COPY_4V(texObj->BorderColor.ui, params); |
break; |
default: |
_mesa_TexParameteriv(target, pname, (const GLint *) params); |
break; |
} |
/* XXX no driver hook for TexParameterIuiv() yet */ |
} |
|
|
|
|
void GLAPIENTRY |
_mesa_GetTexLevelParameterfv( GLenum target, GLint level, |
GLenum pname, GLfloat *params ) |
{ |
GLint iparam; |
_mesa_GetTexLevelParameteriv( target, level, pname, &iparam ); |
*params = (GLfloat) iparam; |
} |
|
|
void GLAPIENTRY |
_mesa_GetTexLevelParameteriv( GLenum target, GLint level, |
GLenum pname, GLint *params ) |
{ |
const struct gl_texture_unit *texUnit; |
struct gl_texture_object *texObj; |
const struct gl_texture_image *img = NULL; |
GLboolean isProxy; |
GLint maxLevels; |
gl_format texFormat; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"glGetTexLevelParameteriv(current unit)"); |
return; |
} |
|
texUnit = _mesa_get_current_tex_unit(ctx); |
|
/* this will catch bad target values */ |
maxLevels = _mesa_max_texture_levels(ctx, target); |
if (maxLevels == 0) { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(target=0x%x)", target); |
return; |
} |
|
if (level < 0 || level >= maxLevels) { |
_mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); |
return; |
} |
|
texObj = _mesa_select_tex_object(ctx, texUnit, target); |
_mesa_lock_texture(ctx, texObj); |
|
img = _mesa_select_tex_image(ctx, texObj, target, level); |
if (!img || !img->TexFormat) { |
/* undefined texture image */ |
if (pname == GL_TEXTURE_COMPONENTS) |
*params = 1; |
else |
*params = 0; |
goto out; |
} |
|
texFormat = img->TexFormat; |
|
isProxy = _mesa_is_proxy_texture(target); |
|
switch (pname) { |
case GL_TEXTURE_WIDTH: |
*params = img->Width; |
break; |
case GL_TEXTURE_HEIGHT: |
*params = img->Height; |
break; |
case GL_TEXTURE_DEPTH: |
*params = img->Depth; |
break; |
case GL_TEXTURE_INTERNAL_FORMAT: |
if (_mesa_is_format_compressed(img->TexFormat)) { |
/* need to return the actual compressed format */ |
*params = _mesa_compressed_format_to_glenum(ctx, img->TexFormat); |
} |
else { |
/* return the user's requested internal format */ |
*params = img->InternalFormat; |
} |
break; |
case GL_TEXTURE_BORDER: |
*params = img->Border; |
break; |
case GL_TEXTURE_RED_SIZE: |
if (img->_BaseFormat == GL_RED) { |
*params = _mesa_get_format_bits(texFormat, pname); |
break; |
} |
/* FALLTHROUGH */ |
case GL_TEXTURE_GREEN_SIZE: |
if (img->_BaseFormat == GL_RG) { |
*params = _mesa_get_format_bits(texFormat, pname); |
break; |
} |
/* FALLTHROUGH */ |
case GL_TEXTURE_BLUE_SIZE: |
if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA) |
*params = _mesa_get_format_bits(texFormat, pname); |
else |
*params = 0; |
break; |
case GL_TEXTURE_ALPHA_SIZE: |
if (img->_BaseFormat == GL_ALPHA || |
img->_BaseFormat == GL_LUMINANCE_ALPHA || |
img->_BaseFormat == GL_RGBA) |
*params = _mesa_get_format_bits(texFormat, pname); |
else |
*params = 0; |
break; |
case GL_TEXTURE_INTENSITY_SIZE: |
if (img->_BaseFormat != GL_INTENSITY) |
*params = 0; |
else { |
*params = _mesa_get_format_bits(texFormat, pname); |
if (*params == 0) { |
/* intensity probably stored as rgb texture */ |
*params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE), |
_mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE)); |
} |
} |
break; |
case GL_TEXTURE_LUMINANCE_SIZE: |
if (img->_BaseFormat != GL_LUMINANCE && |
img->_BaseFormat != GL_LUMINANCE_ALPHA) |
*params = 0; |
else { |
*params = _mesa_get_format_bits(texFormat, pname); |
if (*params == 0) { |
/* luminance probably stored as rgb texture */ |
*params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE), |
_mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE)); |
} |
} |
break; |
case GL_TEXTURE_INDEX_SIZE_EXT: |
if (img->_BaseFormat == GL_COLOR_INDEX) |
*params = _mesa_get_format_bits(texFormat, pname); |
else |
*params = 0; |
break; |
case GL_TEXTURE_DEPTH_SIZE_ARB: |
if (ctx->Extensions.ARB_depth_texture) |
*params = _mesa_get_format_bits(texFormat, pname); |
else |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
break; |
case GL_TEXTURE_STENCIL_SIZE_EXT: |
if (ctx->Extensions.EXT_packed_depth_stencil || |
ctx->Extensions.ARB_framebuffer_object) { |
*params = _mesa_get_format_bits(texFormat, pname); |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
case GL_TEXTURE_SHARED_SIZE: |
if (ctx->VersionMajor >= 3) { |
/* XXX return number of exponent bits for shared exponent texture |
* formats, like GL_RGB9_E5. |
*/ |
*params = 0; |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
|
/* GL_ARB_texture_compression */ |
case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: |
if (_mesa_is_format_compressed(img->TexFormat) && !isProxy) { |
*params = _mesa_format_image_size(texFormat, img->Width, |
img->Height, img->Depth); |
} |
else { |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
case GL_TEXTURE_COMPRESSED: |
*params = (GLint) _mesa_is_format_compressed(img->TexFormat); |
break; |
|
/* GL_ARB_texture_float */ |
case GL_TEXTURE_RED_TYPE_ARB: |
if (ctx->Extensions.ARB_texture_float) { |
*params = _mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE) ? |
_mesa_get_format_datatype(texFormat) : GL_NONE; |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
case GL_TEXTURE_GREEN_TYPE_ARB: |
if (ctx->Extensions.ARB_texture_float) { |
*params = _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE) ? |
_mesa_get_format_datatype(texFormat) : GL_NONE; |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
case GL_TEXTURE_BLUE_TYPE_ARB: |
if (ctx->Extensions.ARB_texture_float) { |
*params = _mesa_get_format_bits(texFormat, GL_TEXTURE_BLUE_SIZE) ? |
_mesa_get_format_datatype(texFormat) : GL_NONE; |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
case GL_TEXTURE_ALPHA_TYPE_ARB: |
if (ctx->Extensions.ARB_texture_float) { |
*params = _mesa_get_format_bits(texFormat, GL_TEXTURE_ALPHA_SIZE) ? |
_mesa_get_format_datatype(texFormat) : GL_NONE; |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
case GL_TEXTURE_LUMINANCE_TYPE_ARB: |
if (ctx->Extensions.ARB_texture_float) { |
*params = _mesa_get_format_bits(texFormat, GL_TEXTURE_LUMINANCE_SIZE) ? |
_mesa_get_format_datatype(texFormat) : GL_NONE; |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
case GL_TEXTURE_INTENSITY_TYPE_ARB: |
if (ctx->Extensions.ARB_texture_float) { |
*params = _mesa_get_format_bits(texFormat, GL_TEXTURE_INTENSITY_SIZE) ? |
_mesa_get_format_datatype(texFormat) : GL_NONE; |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
case GL_TEXTURE_DEPTH_TYPE_ARB: |
if (ctx->Extensions.ARB_texture_float) { |
*params = _mesa_get_format_bits(texFormat, GL_TEXTURE_DEPTH_SIZE) ? |
_mesa_get_format_datatype(texFormat) : GL_NONE; |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
|
default: |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
|
out: |
_mesa_unlock_texture(ctx, texObj); |
} |
|
|
|
void GLAPIENTRY |
_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) |
{ |
struct gl_texture_object *obj; |
GLboolean error = GL_FALSE; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
obj = get_texobj(ctx, target, GL_TRUE); |
if (!obj) |
return; |
|
_mesa_lock_texture(ctx, obj); |
switch (pname) { |
case GL_TEXTURE_MAG_FILTER: |
*params = ENUM_TO_FLOAT(obj->MagFilter); |
break; |
case GL_TEXTURE_MIN_FILTER: |
*params = ENUM_TO_FLOAT(obj->MinFilter); |
break; |
case GL_TEXTURE_WRAP_S: |
*params = ENUM_TO_FLOAT(obj->WrapS); |
break; |
case GL_TEXTURE_WRAP_T: |
*params = ENUM_TO_FLOAT(obj->WrapT); |
break; |
case GL_TEXTURE_WRAP_R: |
*params = ENUM_TO_FLOAT(obj->WrapR); |
break; |
case GL_TEXTURE_BORDER_COLOR: |
params[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F); |
params[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F); |
params[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F); |
params[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F); |
break; |
case GL_TEXTURE_RESIDENT: |
{ |
GLboolean resident; |
if (ctx->Driver.IsTextureResident) |
resident = ctx->Driver.IsTextureResident(ctx, obj); |
else |
resident = GL_TRUE; |
*params = ENUM_TO_FLOAT(resident); |
} |
break; |
case GL_TEXTURE_PRIORITY: |
*params = obj->Priority; |
break; |
case GL_TEXTURE_MIN_LOD: |
*params = obj->MinLod; |
break; |
case GL_TEXTURE_MAX_LOD: |
*params = obj->MaxLod; |
break; |
case GL_TEXTURE_BASE_LEVEL: |
*params = (GLfloat) obj->BaseLevel; |
break; |
case GL_TEXTURE_MAX_LEVEL: |
*params = (GLfloat) obj->MaxLevel; |
break; |
case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
if (ctx->Extensions.EXT_texture_filter_anisotropic) { |
*params = obj->MaxAnisotropy; |
} |
else |
error = GL_TRUE; |
break; |
case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
if (ctx->Extensions.ARB_shadow_ambient) { |
*params = obj->CompareFailValue; |
} |
else |
error = GL_TRUE; |
break; |
case GL_GENERATE_MIPMAP_SGIS: |
*params = (GLfloat) obj->GenerateMipmap; |
break; |
case GL_TEXTURE_COMPARE_MODE_ARB: |
if (ctx->Extensions.ARB_shadow) { |
*params = (GLfloat) obj->CompareMode; |
} |
else |
error = GL_TRUE; |
break; |
case GL_TEXTURE_COMPARE_FUNC_ARB: |
if (ctx->Extensions.ARB_shadow) { |
*params = (GLfloat) obj->CompareFunc; |
} |
else |
error = GL_TRUE; |
break; |
case GL_DEPTH_TEXTURE_MODE_ARB: |
if (ctx->Extensions.ARB_depth_texture) { |
*params = (GLfloat) obj->DepthMode; |
} |
else |
error = GL_TRUE; |
break; |
case GL_TEXTURE_LOD_BIAS: |
if (ctx->Extensions.EXT_texture_lod_bias) { |
*params = obj->LodBias; |
} |
else |
error = GL_TRUE; |
break; |
#if FEATURE_OES_draw_texture |
case GL_TEXTURE_CROP_RECT_OES: |
params[0] = obj->CropRect[0]; |
params[1] = obj->CropRect[1]; |
params[2] = obj->CropRect[2]; |
params[3] = obj->CropRect[3]; |
break; |
#endif |
|
case GL_TEXTURE_SWIZZLE_R_EXT: |
case GL_TEXTURE_SWIZZLE_G_EXT: |
case GL_TEXTURE_SWIZZLE_B_EXT: |
case GL_TEXTURE_SWIZZLE_A_EXT: |
if (ctx->Extensions.EXT_texture_swizzle) { |
GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; |
*params = (GLfloat) obj->Swizzle[comp]; |
} |
else { |
error = GL_TRUE; |
} |
break; |
|
case GL_TEXTURE_SWIZZLE_RGBA_EXT: |
if (ctx->Extensions.EXT_texture_swizzle) { |
GLuint comp; |
for (comp = 0; comp < 4; comp++) { |
params[comp] = (GLfloat) obj->Swizzle[comp]; |
} |
} |
else { |
error = GL_TRUE; |
} |
break; |
|
default: |
error = GL_TRUE; |
break; |
} |
|
if (error) |
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)", |
pname); |
|
_mesa_unlock_texture(ctx, obj); |
} |
|
|
void GLAPIENTRY |
_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params ) |
{ |
struct gl_texture_object *obj; |
GLboolean error = GL_FALSE; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
obj = get_texobj(ctx, target, GL_TRUE); |
if (!obj) |
return; |
|
_mesa_lock_texture(ctx, obj); |
switch (pname) { |
case GL_TEXTURE_MAG_FILTER: |
*params = (GLint) obj->MagFilter; |
break;; |
case GL_TEXTURE_MIN_FILTER: |
*params = (GLint) obj->MinFilter; |
break;; |
case GL_TEXTURE_WRAP_S: |
*params = (GLint) obj->WrapS; |
break;; |
case GL_TEXTURE_WRAP_T: |
*params = (GLint) obj->WrapT; |
break;; |
case GL_TEXTURE_WRAP_R: |
*params = (GLint) obj->WrapR; |
break;; |
case GL_TEXTURE_BORDER_COLOR: |
{ |
GLfloat b[4]; |
b[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F); |
b[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F); |
b[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F); |
b[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F); |
params[0] = FLOAT_TO_INT(b[0]); |
params[1] = FLOAT_TO_INT(b[1]); |
params[2] = FLOAT_TO_INT(b[2]); |
params[3] = FLOAT_TO_INT(b[3]); |
} |
break;; |
case GL_TEXTURE_RESIDENT: |
{ |
GLboolean resident; |
if (ctx->Driver.IsTextureResident) |
resident = ctx->Driver.IsTextureResident(ctx, obj); |
else |
resident = GL_TRUE; |
*params = (GLint) resident; |
} |
break;; |
case GL_TEXTURE_PRIORITY: |
*params = FLOAT_TO_INT(obj->Priority); |
break;; |
case GL_TEXTURE_MIN_LOD: |
*params = (GLint) obj->MinLod; |
break;; |
case GL_TEXTURE_MAX_LOD: |
*params = (GLint) obj->MaxLod; |
break;; |
case GL_TEXTURE_BASE_LEVEL: |
*params = obj->BaseLevel; |
break;; |
case GL_TEXTURE_MAX_LEVEL: |
*params = obj->MaxLevel; |
break;; |
case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
if (ctx->Extensions.EXT_texture_filter_anisotropic) { |
*params = (GLint) obj->MaxAnisotropy; |
} |
else { |
error = GL_TRUE; |
} |
break; |
case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
if (ctx->Extensions.ARB_shadow_ambient) { |
*params = (GLint) FLOAT_TO_INT(obj->CompareFailValue); |
} |
else { |
error = GL_TRUE; |
} |
break; |
case GL_GENERATE_MIPMAP_SGIS: |
*params = (GLint) obj->GenerateMipmap; |
break; |
case GL_TEXTURE_COMPARE_MODE_ARB: |
if (ctx->Extensions.ARB_shadow) { |
*params = (GLint) obj->CompareMode; |
} |
else { |
error = GL_TRUE; |
} |
break; |
case GL_TEXTURE_COMPARE_FUNC_ARB: |
if (ctx->Extensions.ARB_shadow) { |
*params = (GLint) obj->CompareFunc; |
} |
else { |
error = GL_TRUE; |
} |
break; |
case GL_DEPTH_TEXTURE_MODE_ARB: |
if (ctx->Extensions.ARB_depth_texture) { |
*params = (GLint) obj->DepthMode; |
} |
else { |
error = GL_TRUE; |
} |
break; |
case GL_TEXTURE_LOD_BIAS: |
if (ctx->Extensions.EXT_texture_lod_bias) { |
*params = (GLint) obj->LodBias; |
} |
else { |
error = GL_TRUE; |
} |
break; |
#if FEATURE_OES_draw_texture |
case GL_TEXTURE_CROP_RECT_OES: |
params[0] = obj->CropRect[0]; |
params[1] = obj->CropRect[1]; |
params[2] = obj->CropRect[2]; |
params[3] = obj->CropRect[3]; |
break; |
#endif |
case GL_TEXTURE_SWIZZLE_R_EXT: |
case GL_TEXTURE_SWIZZLE_G_EXT: |
case GL_TEXTURE_SWIZZLE_B_EXT: |
case GL_TEXTURE_SWIZZLE_A_EXT: |
if (ctx->Extensions.EXT_texture_swizzle) { |
GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; |
*params = obj->Swizzle[comp]; |
} |
else { |
error = GL_TRUE; |
} |
break; |
|
case GL_TEXTURE_SWIZZLE_RGBA_EXT: |
if (ctx->Extensions.EXT_texture_swizzle) { |
COPY_4V(params, obj->Swizzle); |
} |
else { |
error = GL_TRUE; |
} |
break; |
|
default: |
; /* silence warnings */ |
} |
|
if (error) |
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", |
pname); |
|
_mesa_unlock_texture(ctx, obj); |
} |
|
|
/** New in GL 3.0 */ |
void GLAPIENTRY |
_mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params) |
{ |
struct gl_texture_object *texObj; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
texObj = get_texobj(ctx, target, GL_TRUE); |
|
switch (pname) { |
case GL_TEXTURE_BORDER_COLOR: |
COPY_4V(params, texObj->BorderColor.i); |
break; |
default: |
_mesa_GetTexParameteriv(target, pname, params); |
} |
} |
|
|
/** New in GL 3.0 */ |
void GLAPIENTRY |
_mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params) |
{ |
struct gl_texture_object *texObj; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END(ctx); |
|
texObj = get_texobj(ctx, target, GL_TRUE); |
|
switch (pname) { |
case GL_TEXTURE_BORDER_COLOR: |
COPY_4V(params, texObj->BorderColor.i); |
break; |
default: |
{ |
GLint ip[4]; |
_mesa_GetTexParameteriv(target, pname, ip); |
params[0] = ip[0]; |
if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT || |
pname == GL_TEXTURE_CROP_RECT_OES) { |
params[1] = ip[1]; |
params[2] = ip[2]; |
params[3] = ip[3]; |
} |
} |
} |
} |